MinutePhysics
Why the Solar System Can Exist
If gravity is so attractive, why doesn't the earth just crash into the sun? Or the moon into the earth? The answer: Stable Orbits
MinutePhysics
Where Do Galaxies Come From?
Thanks to the Space Telescope Science Institute (STScI) and NASA's James Webb Space Telescope for supporting this video! In particular, thanks to Dan Coe of STScI for taking the time to chat with me about what we do and don't know about...
MinutePhysics
What is Sea Level
An oblate spheroid is a special case of an ellipsoid where two of the semi-principal axes are the same size.
MinutePhysics
What if the Earth Were Hollow
What if there were a tunnel through the middle of the earth and you jumped in?
TED-Ed
TED-Ed: Could we build a miniature sun on Earth? | George Zaidan
Stars have cores hot and dense enough to force atomic nuclei together, forming larger, heavier nuclei in a process known as fusion. In this process, the mass of the end products is slightly less than the mass of the initial atoms. But...
SciShow
Why NASA Put The Moon In A Pool
NASA has been using swimming pools to train astronauts since the 1960s. The largest is the Neutral Buoyancy Laboratory (NBL), which holds roughly 9 olympic pools worth of water and has contained not just mockups of space station and...
SciShow
This Light is a Different Kind of Invisible
Dark matter's most famous trait is its inability to interact with light, the particle version of which we call "photons". But in their attempts to figure out exactly what dark matter is, some scientists have proposed "dark photons".
SciShow
Does Antimatter Fall?
In September 2023, a group of scientists from CERN published the first results from the ALPHA-g experiment, which seeks to figure out how antimatter responds to the force of gravity. Does it fall like regular matter? Does it not interact...
SciShow Kids
How Will Humans Live on Mars? | Let's Explore Mars! | SciShow Kids
Squeaks and Jessi would love to visit Mars one day, but our neighboring planet is very different from Earth. Together, they make a travel plan and packing list that will help them overcome the challenges of life on Mars! Thanks to our...
SciShow
What We Know, And Still Don’t Know, About the Dark Side of the Moon | Compilation
More than a classic rock album that'll change your life, this classic space rock has a dark side that has mystified scientists for centuries.
SciShow
The Asteroid That Nearly Swallowed OSIRIS-Rex
It's always an asteroid heading straight toward us that we worry about, never what happens to us when we head straight toward the asteroid. OSIRIS-REx's experience with Bennu tells us it's worth a thought.
SciShow
Holes In Space That Aren't Black | Compilation
We’ve talked a lot about black holes, but there are other kinds of space holes out there that deserve some time in the spotlight!
SciShow
Great Minds: Conny Aerts, the Starquake Professor
While doing some light reading of data from a telescope, Conny Aerts made a breakthrough that allowed her to lead the charge in the field of asteroseismology and win her the 2022 Kavli Prize in Astrophysics.
SciShow
Earth’s other moons
You're familiar with the Moon, but it's not only our moon, depending on your point of view.
SciShow
This Toxic Liquid Telescope from the 1850s Is Finally Useful
Sometimes looking into a pool of a toxic liquid holds the secrets of the universe–or maybe just this one time.
SciShow
We Don’t Know Why Astronauts Get Motion Sick
A majority of modern astronauts experience any one of a suite of symptoms scientists collectively call Space Motion Sickness, or SMS. But despite knowing about it for nearly as long as humans have gone into space, we still don't know...
SciShow
The Particle So Extreme Scientists Called it OMG
In 1991, a subatomic particle smashed into Earth's atmosphere traveling faster than anything humans can replicate. It's the most energetic particle detected to date, and maybe even the fastest (except light itself). Astronomers call it...
SciShow
How to Make a Dark Matter Planet
Dark Matter is the most abundant form of matter in the known universe, so what's keeping it from forming into planets?
SciShow
How Many Suns Can One Planet Have?
Earth and the other seven planets in our solar system have only one star: the Sun. Years ago, astronomers found the first exoplanet that had two stars. They also found one with three stars. And four. Just how many stars can one planet have?
SciShow
The Spiders That Turn Stars into Planets
Neutron stars, are some of the most extreme phenomenon in the universe. It's doubly so for a subset known as pulsars. Some are spinning so fast, and are so massive, that astronomers aren't entirely sure how they got to be that way. One...
PBS
Planet X Discovered?? + Challenge Winners!
Some funky orbits near the Kuiper Belt are hinting towards a brand new planet, the elusive ‘Planet X.’ Our friends Mike Brown and Konstantin Batygin of Caltech are working hard to finally spot the potential gas giant through powerful...
PBS
The Boundary Between Black Holes & Neutron Stars
When we detected the very first gravitational wave, a new window was opened to the mysteries of the universe. We knew we’d see things previously thought impossible. And we just did - an object on the boundary between neutron stars and...